/* base: equivalente ao reset da página publicada */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%}
:root{padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}
body{margin:0;font:14px/1.4 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
img{max-width:100%}
[hidden]{display:none!important}

/* Layout: coluna única de até 460px; trilha em zigue-zague ligada por fio; abas fixas embaixo; lição em tela cheia.
   Identidade: livro de capítulos + terminal. Preto absoluto, branco puro, numerais serifados vazados, rótulos em mono. */
:root{
  --ink:#000000;
  --paper:#ffffff;
  --mute:rgba(255,255,255,.66);
  --faint:rgba(255,255,255,.4);
  --line:rgba(255,255,255,.14);
  --line-2:rgba(255,255,255,.32);
  --f-display:"Instrument Serif","Iowan Old Style","Times New Roman",serif;
  --f-body:"Geist",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --f-mono:"Geist Mono",ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;
  --gx:max(16px, env(safe-area-inset-left, 0px));
  --gxr:max(16px, env(safe-area-inset-right, 0px));
  --sb:env(safe-area-inset-bottom, 0px);
  --st:env(safe-area-inset-top, 0px);
  color-scheme:dark;
}
html,body{height:100%;background:var(--ink)}
body{color:var(--paper);font-family:var(--f-body);font-size:16px;line-height:1.5;-webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent;overflow-x:hidden}
body::before{content:"";position:fixed;inset:0 0 auto;height:var(--st);z-index:60;background:var(--ink)}
*{box-sizing:border-box}
::selection{background:var(--paper);color:var(--ink)}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer;text-align:inherit}
button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--paper);outline-offset:3px}
a{color:var(--paper)}
code{font-family:var(--f-mono);font-size:.86em;padding:.06em .36em;border:1px solid var(--line-2);border-radius:6px;overflow-wrap:anywhere}
strong{font-weight:600}
h1,h2,h3{margin:0;font-weight:400;text-wrap:balance}
p{margin:0}
.eyebrow{font-family:var(--f-mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--mute)}
.mono{font-family:var(--f-mono)}
.outline-num{font-family:var(--f-display);color:transparent;-webkit-text-stroke:1px var(--paper);font-variant-numeric:tabular-nums;line-height:.8}

#app{max-width:460px;margin:0 auto;min-height:100%;position:relative}
@media (min-width:520px){#app{border-left:1px solid var(--line);border-right:1px solid var(--line)}}
.wrap{padding-left:var(--gx);padding-right:var(--gxr)}

/* ---------- topo ---------- */
.top{position:sticky;top:var(--st);z-index:20;background:var(--ink);border-bottom:1px solid var(--line);padding-block:12px;padding-left:var(--gx);padding-right:var(--gxr);display:flex;align-items:center;gap:10px}
.langchip{display:flex;align-items:center;gap:8px;padding:5px 10px 5px 5px;border:1px solid var(--line-2);border-radius:999px;font-weight:500;font-size:14px;min-width:0}
.glyph{font-family:var(--f-mono);font-size:10.5px;font-weight:600;width:28px;height:28px;border-radius:999px;background:var(--paper);color:var(--ink);display:grid;place-items:center;flex:none;letter-spacing:-.04em}
.stats{margin-left:auto;display:flex;gap:2px}
.stat{display:flex;align-items:center;gap:5px;padding:6px 7px;font-family:var(--f-mono);font-size:14px;font-weight:500;font-variant-numeric:tabular-nums;border-radius:10px;white-space:nowrap}
.stat svg{width:18px;height:18px;flex:none}
.stat.dim{color:var(--faint)}

/* ---------- abas ---------- */
.views{padding-bottom:calc(88px + var(--sb))}
.tabbar{position:fixed;left:0;right:0;bottom:0;z-index:30;background:var(--ink);border-top:1px solid var(--line);padding-bottom:var(--sb);padding-left:var(--gx);padding-right:var(--gxr)}
.tabbar-in{max-width:460px;margin:0 auto;display:grid;grid-template-columns:repeat(4,1fr)}
.tab{position:relative;display:flex;flex-direction:column;align-items:center;gap:5px;padding:12px 0 13px;font-size:10px;letter-spacing:.06em;color:var(--faint);font-family:var(--f-mono);text-transform:uppercase}
.tab svg{width:22px;height:22px}
.tab[aria-selected="true"]{color:var(--paper)}
.tab[aria-selected="true"]::before{content:"";position:absolute;top:-1px;left:28%;right:28%;height:2px;background:var(--paper);border-radius:0 0 2px 2px}

/* ---------- barras ---------- */
.bar{height:8px;border-radius:9px;border:1px solid var(--line-2);overflow:hidden}
.bar>i{display:block;height:100%;background:var(--paper);border-radius:9px;transition:width .6s cubic-bezier(.2,.8,.2,1)}
.bar.thin{height:3px;border:0;border-radius:0;background:linear-gradient(var(--line-2),var(--line-2)) center/100% 1px no-repeat}
.bar.thin>i{border-radius:0}

/* ---------- trilha ---------- */
.hero{padding-block:18px 6px;display:grid;gap:14px}
.goal{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:12px}
.goal b{font-family:var(--f-mono);font-weight:500;font-size:12px;font-variant-numeric:tabular-nums}
.goal .bar{height:6px}
.next{border:1px solid var(--line-2);border-radius:24px;padding:20px 18px 18px;display:grid;gap:12px;position:relative;overflow:hidden}
.next-head{display:flex;justify-content:space-between;align-items:flex-start;gap:12px}
.next h1{font-family:var(--f-display);font-size:42px;line-height:.98;letter-spacing:-.005em}
.next-meta{color:var(--mute);font-size:14px;margin-top:6px}
.next .outline-num{font-size:84px;margin:-6px -2px -10px 0;flex:none}
.next-row{display:flex;justify-content:space-between;font-family:var(--f-mono);font-size:12px;color:var(--mute);font-variant-numeric:tabular-nums}
.level{display:flex;align-items:center;gap:12px;margin:46px 0 2px}
.level::before,.level::after{content:"";flex:1;height:1px;background:var(--line)}
.level span{display:flex;align-items:baseline;gap:8px;white-space:nowrap}
.level small{font-family:var(--f-mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--mute)}
.level em{font-family:var(--f-display);font-size:24px;line-height:1}
.unit{padding-block:22px 4px}
.unit-head{display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:14px;align-items:end;padding-bottom:14px}
.unit-head .outline-num{font-size:64px}
.unit.complete .unit-head .outline-num{color:var(--paper)}
.unit-head h2{font-family:var(--f-display);font-size:28px;line-height:1.05;margin-top:4px}
.unit-head .bar{margin-top:10px}
.unit-count{font-family:var(--f-mono);font-size:12px;color:var(--mute);font-variant-numeric:tabular-nums;white-space:nowrap;padding-bottom:2px}
.path{position:relative;display:flex;flex-direction:column;align-items:center;gap:30px;padding:34px 0 18px}
.wire{position:absolute;left:0;top:0;pointer-events:none;overflow:visible}
.wire path{fill:none;stroke-width:2;stroke-linecap:round}
.wire .w-on{stroke:var(--paper)}
.wire .w-off{stroke:var(--line-2);stroke-dasharray:1 8}
.stop{display:flex;flex-direction:column;align-items:center;gap:9px;position:relative;z-index:1;width:132px}
.stop.current{margin-top:16px}
.node{width:68px;height:68px;border-radius:50%;display:grid;place-items:center;border:1.5px solid var(--line-2);background:var(--ink);font-family:var(--f-mono);font-size:17px;font-weight:500;position:relative;transition:transform .15s ease;font-variant-numeric:tabular-nums}
.node:active{transform:scale(.93)}
.node svg{width:26px;height:26px}
.stop.done .node{background:var(--paper);color:var(--ink);border-color:var(--paper)}
.stop.current .node{width:78px;height:78px;border:2px solid var(--paper);font-size:20px;box-shadow:0 0 0 6px var(--ink),0 0 0 7px var(--line-2)}
.stop.current .node::after{content:"";position:absolute;inset:-14px;border-radius:50%;border:1px solid var(--paper);opacity:0;animation:ping 2.6s ease-out infinite}
.stop.locked .node{color:var(--faint);border-style:dashed}
.stop-label{font-size:13px;text-align:center;line-height:1.25;color:var(--faint);text-wrap:balance;background:var(--ink);padding:0 4px}
.stop.current .stop-label,.stop.done .stop-label{color:var(--paper)}
.stop.current .stop-label{font-weight:500}
.start-pill{position:absolute;top:-36px;left:50%;transform:translateX(-50%);background:var(--paper);color:var(--ink);font-family:var(--f-mono);font-size:11px;font-weight:600;letter-spacing:.12em;padding:6px 10px;border-radius:8px;white-space:nowrap;animation:bob 2.2s ease-in-out infinite;z-index:2}
.start-pill::after{content:"";position:absolute;left:50%;bottom:-4px;width:8px;height:8px;background:var(--paper);transform:translateX(-50%) rotate(45deg)}
.endcap{display:grid;justify-items:center;gap:10px;padding:36px 0 30px;text-align:center}
.endcap .node{width:84px;height:84px}
.endcap p{color:var(--mute);font-size:14px;max-width:30ch}
@keyframes ping{0%{transform:scale(.85);opacity:.7}80%,100%{transform:scale(1.25);opacity:0}}
@keyframes bob{0%,100%{transform:translate(-50%,0)}50%{transform:translate(-50%,-4px)}}

/* ---------- títulos de página ---------- */
.page-head{padding-block:26px 8px;display:grid;gap:8px}
.page-head h1{font-family:var(--f-display);font-size:50px;line-height:.95}
.page-head h1 em{font-style:italic}
.page-head p{color:var(--mute);max-width:38ch}
.sec{margin-top:36px;display:grid;gap:14px}
.sec-head{display:flex;justify-content:space-between;align-items:baseline;gap:12px}
.sec-head span:last-child{font-family:var(--f-mono);font-size:12px;color:var(--mute);font-variant-numeric:tabular-nums}

/* ---------- desafios ---------- */
.daily{display:grid;gap:14px;text-align:left;border-radius:24px;padding:20px 18px;background:var(--paper);color:var(--ink);margin-top:10px;position:relative;overflow:hidden}
.daily .eyebrow{color:var(--ink);opacity:.62}
.daily-top{display:flex;justify-content:space-between;align-items:flex-start;gap:10px;position:relative;z-index:1}
.daily-top .eyebrow{min-width:0}
.daily-top b{font-family:var(--f-mono);font-size:12px;font-weight:600;border:1px solid var(--ink);border-radius:6px;padding:3px 7px;white-space:nowrap;flex:none}
.daily h2{font-family:var(--f-display);font-size:40px;line-height:.98;position:relative}
.daily p{font-size:14px;opacity:.72;max-width:30ch}
.daily-cta{display:flex;justify-content:space-between;align-items:center;border-top:1px solid rgba(0,0,0,.18);padding-top:14px;font-weight:600}
.daily-cta svg{width:22px;height:22px}
.daily .bigdeco{position:absolute;right:-4px;bottom:52px;font-family:var(--f-mono);font-size:110px;line-height:1;font-weight:500;opacity:.07;letter-spacing:-.06em;pointer-events:none}
.daily.done{background:var(--ink);color:var(--paper);border:1px solid var(--line-2)}
.daily.done .eyebrow{color:var(--mute);opacity:1}
.daily.done .daily-top b{border-color:var(--paper);background:var(--paper);color:var(--ink)}
.daily.done .daily-cta{border-color:var(--line)}
.daily.done .bigdeco{opacity:.09}
.modes{display:grid;gap:12px;margin-top:12px}
.mode{display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:14px;align-items:center;text-align:left;border:1px solid var(--line-2);border-radius:20px;padding:16px 16px 16px 14px}
.mode-ic{width:48px;height:48px;border-radius:50%;display:grid;place-items:center;border:1px solid var(--line-2)}
.mode-ic svg{width:22px;height:22px}
.mode-t{font-family:var(--f-display);font-size:26px;line-height:1;display:block}
.mode-d{font-size:13.5px;color:var(--mute);display:block;margin-top:5px}
.mode-x{font-family:var(--f-mono);font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--faint);display:block;margin-top:8px}
.rec{display:grid;justify-items:end;gap:4px;padding-left:10px;border-left:1px solid var(--line);min-width:58px}
.rec b{font-family:var(--f-display);font-size:38px;font-weight:400;line-height:.85;font-variant-numeric:tabular-nums}
.rec small{font-family:var(--f-mono);font-size:9.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--faint)}

/* ---------- biblioteca ---------- */
.chips{display:flex;gap:8px;overflow-x:auto;padding-block:14px 6px;scrollbar-width:none;-webkit-mask-image:linear-gradient(90deg,#000 85%,transparent);mask-image:linear-gradient(90deg,#000 85%,transparent);padding-right:30px}
.chips::-webkit-scrollbar{display:none}
.chip{border:1px solid var(--line-2);border-radius:999px;padding:8px 15px;font-size:14px;white-space:nowrap;color:var(--mute);flex:none}
.chip[aria-pressed="true"]{background:var(--paper);color:var(--ink);border-color:var(--paper);font-weight:500}
.shelf{margin-top:26px;display:flex;justify-content:space-between;align-items:baseline;padding-bottom:4px;border-bottom:1px solid var(--line)}
.shelf b{font-family:var(--f-display);font-weight:400;font-size:28px}
.shelf span{font-family:var(--f-mono);font-size:12px;color:var(--mute)}
.book{display:grid;grid-template-columns:66px minmax(0,1fr);gap:16px;padding-block:18px;border-bottom:1px solid var(--line)}
.cover{width:66px;height:94px;border:1px solid var(--line-2);border-radius:3px 8px 8px 3px;position:relative;overflow:hidden;background:var(--ink)}
.cover .pat{position:absolute;inset:0}
.cover::before{content:"";position:absolute;left:6px;top:0;bottom:0;width:1px;background:var(--line-2);z-index:2}
.cover .ini{position:absolute;left:11px;top:9px;z-index:2;width:30px;height:32px;display:grid;place-items:center;background:var(--ink);font-family:var(--f-display);font-size:26px;line-height:1;border-radius:3px}
.cover .tg{position:absolute;left:6px;right:0;bottom:0;z-index:2;background:var(--ink);font-family:var(--f-mono);font-size:8px;letter-spacing:.14em;text-transform:uppercase;color:var(--mute);padding:4px 6px 5px}
.cover.solid{background:var(--paper);border-color:var(--paper)}
.cover.solid::before{background:rgba(0,0,0,.25)}
.cover.solid .ini,.cover.solid .tg{background:var(--paper);color:var(--ink)}
.book h3{font-size:17px;font-weight:600;line-height:1.25}
.book .by{color:var(--mute);font-size:14px;margin-top:2px}
.book .desc{font-size:14px;margin-top:8px;color:var(--paper);opacity:.88}
.meta{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px;align-items:center}
.tag{font-family:var(--f-mono);font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;border:1px solid var(--line-2);border-radius:5px;padding:3px 7px;color:var(--mute);white-space:nowrap}
.tag.on{background:var(--paper);color:var(--ink);border-color:var(--paper)}
.ext{font-size:14px;font-weight:500;text-underline-offset:3px;margin-left:auto;white-space:nowrap}
.note-small{font-size:13px;color:var(--faint);padding-block:22px}

/* ---------- perfil ---------- */
.lvl{display:grid;grid-template-columns:auto minmax(0,1fr);gap:18px;align-items:center;padding-block:22px 4px}
.ring{width:108px;height:108px;position:relative}
.ring svg{width:100%;height:100%;transform:rotate(-90deg)}
.ring circle{fill:none;stroke-width:3}
.ring .r-bg{stroke:var(--line-2);stroke-dasharray:1 5;stroke-linecap:round}
.ring .r-fg{stroke:var(--paper);stroke-linecap:round;transition:stroke-dashoffset .9s cubic-bezier(.2,.8,.2,1)}
.ring b{position:absolute;inset:0;display:grid;place-items:center;font-family:var(--f-display);font-weight:400;font-size:50px;line-height:1}
.lvl h1{font-family:var(--f-display);font-size:44px;line-height:.95}
.lvl p{color:var(--mute);font-size:14px;margin-top:6px}
.trio{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border:1px solid var(--line-2);border-radius:18px}
.trio>div{padding:14px 12px;display:grid;gap:4px;min-width:0}
.trio>div+div{border-left:1px solid var(--line)}
.trio b{font-family:var(--f-display);font-size:36px;font-weight:400;line-height:1;font-variant-numeric:tabular-nums}
.trio>div>span{font-size:12px;color:var(--mute)}
.heat-wrap{display:grid;gap:8px}
.heat-months{display:grid;grid-template-columns:repeat(18,minmax(0,1fr));gap:3px;font-family:var(--f-mono);font-size:10px;color:var(--faint);height:14px}
.heat-months span{white-space:nowrap;overflow:visible}
.heat{display:grid;grid-template-columns:repeat(18,minmax(0,1fr));gap:3px}
.hw{display:grid;grid-template-rows:repeat(7,auto);gap:3px}
.hc{aspect-ratio:1;border-radius:3px;border:1px solid var(--line)}
.hc.x{border-color:transparent}
.hc.l1{background:rgba(255,255,255,.28);border-color:transparent}
.hc.l2{background:rgba(255,255,255,.6);border-color:transparent}
.hc.l3{background:var(--paper);border-color:var(--paper)}
.hc.now{outline:1px solid var(--paper);outline-offset:1px}
.heat-legend{display:flex;justify-content:space-between;align-items:center;font-family:var(--f-mono);font-size:11px;color:var(--faint)}
.heat-legend span{display:flex;gap:3px;align-items:center}
.heat-legend .hc{width:11px}
.badges{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px 10px}
.badge{display:grid;justify-items:center;gap:7px;text-align:center}
.medal{width:58px;height:58px;border-radius:50%;display:grid;place-items:center;font-family:var(--f-mono);font-size:13px;font-weight:600;border:1px dashed var(--line-2);color:var(--faint);position:relative}
.badge.on .medal{background:var(--paper);color:var(--ink);border:0;box-shadow:0 0 0 3px var(--ink),0 0 0 4px var(--paper)}
.badge b{font-size:12px;font-weight:500;line-height:1.2;color:var(--faint)}
.badge.on b{color:var(--paper)}
.badge small{font-size:11px;color:var(--faint);line-height:1.25}
.lp{display:grid;gap:8px;padding-block:12px;border-bottom:1px solid var(--line)}
.lp-row{display:flex;justify-content:space-between;gap:10px;align-items:center}
.lp-row strong{display:flex;align-items:center;gap:10px;font-weight:500}
.lp-row strong .glyph{width:26px;height:26px;font-size:9.5px}
.lp-row>span{font-family:var(--f-mono);font-size:12px;color:var(--mute);font-variant-numeric:tabular-nums}
.actions{display:grid;gap:10px;margin-top:30px}

/* ---------- botões ---------- */
.btn{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;min-height:54px;border-radius:999px;font-weight:600;font-size:16px;letter-spacing:.01em;transition:transform .12s ease,background .2s,color .2s;text-align:center}
.btn:active{transform:scale(.98)}
.btn svg{width:20px;height:20px}
.btn-white{background:var(--paper);color:var(--ink)}
.btn-black{background:var(--ink);color:var(--paper)}
.btn-ghost{border:1px solid var(--line-2);color:var(--paper)}
.btn-danger{border-style:dashed;border-color:var(--mute)}
.sheet h2 em{font-style:italic;color:var(--mute)}
.btn[disabled]{background:transparent;color:var(--faint);border:1px dashed var(--line-2);pointer-events:none}

/* ---------- lição ---------- */
.overlay{position:fixed;inset:0;z-index:50;background:var(--ink);display:flex;justify-content:center}
.overlay-in{width:100%;max-width:460px;height:100%;display:flex;flex-direction:column;padding-top:var(--st);position:relative}
@media (min-width:520px){.overlay-in{border-left:1px solid var(--line);border-right:1px solid var(--line)}}
.l-top{display:flex;align-items:center;gap:14px;padding-block:14px;padding-left:var(--gx);padding-right:var(--gxr)}
.l-top .x{width:36px;height:36px;display:grid;place-items:center;margin-left:-8px;flex:none}
.l-top .x svg{width:22px;height:22px}
.l-top .bar{flex:1;height:10px}
.l-body{flex:1;overflow-y:auto;overflow-x:hidden;padding-block:12px 28px;padding-left:var(--gx);padding-right:var(--gxr);-webkit-overflow-scrolling:touch}
.l-foot{padding-block:14px calc(14px + var(--sb));padding-left:var(--gx);padding-right:var(--gxr);border-top:1px solid var(--line)}
.step{display:grid;grid-template-columns:minmax(0,1fr);gap:18px;animation:in .34s cubic-bezier(.2,.8,.2,1) both}
.step>*{min-width:0}
@keyframes in{from{opacity:.001;transform:translateX(20px)}to{opacity:1;transform:none}}
.shake{animation:shake .38s ease both}
@keyframes shake{20%{transform:translateX(-6px)}40%{transform:translateX(6px)}60%{transform:translateX(-4px)}80%{transform:translateX(3px)}}
.chap{display:flex;align-items:flex-end;gap:14px}
.chap .outline-num{font-size:78px}
.chap .eyebrow{line-height:1.7;padding-bottom:4px}
.step h1{font-family:var(--f-display);font-size:46px;line-height:.98}
.prose{display:grid;gap:14px;font-size:17px;line-height:1.62;max-width:62ch}
.prose .lede{font-size:19px;line-height:1.55}
.tip{border:1px solid var(--line-2);border-radius:16px;padding:14px 16px;display:grid;gap:6px;font-size:15px}
.cmt{font-family:var(--f-mono);font-size:12px;color:var(--mute)}
.ref{display:flex;gap:12px;align-items:center;padding-top:14px;border-top:1px solid var(--line);font-size:14px}
.ref svg{width:20px;height:20px;flex:none}
.ref .eyebrow{display:block;font-size:10px;margin-bottom:2px}
.q-prompt{font-size:22px;line-height:1.35;font-weight:500;text-wrap:balance}

/* código */
.code{border:1px solid var(--line-2);border-radius:16px;overflow:hidden}
.code-head{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:8px 10px 8px 14px;border-bottom:1px solid var(--line);font-family:var(--f-mono);font-size:11px;color:var(--mute);letter-spacing:.06em;min-height:38px}
.code-head .r{display:flex;align-items:center;gap:10px}
.copy{font-family:var(--f-mono);font-size:11px;letter-spacing:.06em;border:1px solid var(--line-2);border-radius:7px;padding:4px 8px;color:var(--paper);text-transform:uppercase}
.code pre{margin:0;padding:12px 0;font-family:var(--f-mono);font-size:var(--code-size,14px);line-height:1.65}
.code .ln{display:grid;grid-template-columns:34px minmax(0,1fr);column-gap:12px;padding-right:14px}
.code .ln::before{content:attr(data-n);text-align:right;color:var(--faint);font-size:11px;user-select:none;padding-top:.2em}
.code .lc{white-space:pre-wrap;overflow-wrap:anywhere;min-width:0}
.out{border:1px solid var(--line);border-radius:16px;padding:12px 16px;font-family:var(--f-mono);font-size:14px;line-height:1.7}
.out .eyebrow{display:block;margin-bottom:6px}
.out pre{margin:0;white-space:pre-wrap;overflow-wrap:anywhere;font:inherit}
.out .pr{color:var(--faint);user-select:none}
.k{font-weight:600;color:var(--paper)}
.b{color:var(--paper);text-decoration:underline;text-decoration-color:var(--line-2);text-underline-offset:3px}
.s{color:rgba(255,255,255,.72);font-style:italic}
.n{color:var(--paper);font-weight:500}
.c{color:var(--faint);font-style:italic}
.p{color:rgba(255,255,255,.5)}
.id{color:rgba(255,255,255,.92)}
.slot{display:inline-block;min-width:3.4em;border-bottom:2px solid var(--paper);text-align:center;font-weight:600;padding:0 4px;color:var(--paper)}
.slot.empty{border-bottom-style:dashed;color:transparent}

/* tabelas SQL */
.tbl-wrap{overflow-x:auto;margin:0 -4px}
.tbl{border-collapse:collapse;font-family:var(--f-mono);font-size:13px;min-width:100%}
.tbl th,.tbl td{padding:7px 10px;border-bottom:1px solid var(--line);text-align:left;white-space:nowrap;font-variant-numeric:tabular-nums}
.tbl th{color:var(--mute);font-weight:500;font-size:10.5px;letter-spacing:.08em;text-transform:uppercase}
.tbl tr:last-child td{border-bottom:0}
.dbv{border:1px dashed var(--line-2);border-radius:16px;padding:0 14px}
.dbv summary{list-style:none;cursor:pointer;padding:13px 0;font-family:var(--f-mono);font-size:12px;letter-spacing:.04em;display:flex;justify-content:space-between;gap:10px;color:var(--mute)}
.dbv summary::-webkit-details-marker{display:none}
.dbv summary::after{content:"+";color:var(--paper);font-size:15px;line-height:1}
.dbv[open] summary::after{content:"−"}
.dbv .tname{font-family:var(--f-mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;margin:12px 0 4px;display:block}
.dbv .tbl{margin-bottom:12px}
/* caça ao bug */
.blines{display:grid;padding:8px 0}
.bline{display:grid;grid-template-columns:34px minmax(0,1fr);column-gap:12px;text-align:left;font-family:var(--f-mono);font-size:var(--code-size,14px);line-height:1.65;padding:6px 14px 6px 0;border-top:1px solid transparent;border-bottom:1px solid transparent;transition:background .2s,color .2s,opacity .2s}
.bline .lc{white-space:pre-wrap;overflow-wrap:anywhere}
.bline .bn{text-align:right;color:var(--faint);font-size:11px;padding-top:.2em}
.bline[aria-pressed="true"]{border-color:var(--paper)}
.bline[aria-pressed="true"] .bn{color:var(--paper);font-weight:600}
.bline.is-right{background:var(--paper);border-color:var(--paper)}
.bline.is-right .lc,.bline.is-right .lc span,.bline.is-right .bn{color:var(--ink)}
.bline.is-wrong{border-style:dashed;border-color:var(--line-2)}
.bline.is-wrong .lc{text-decoration:line-through;text-decoration-thickness:1px}

/* opções */
.opts{display:grid;gap:10px}
.opt{display:flex;align-items:center;gap:14px;text-align:left;border:1px solid var(--line-2);border-radius:16px;padding:14px 16px;min-height:58px;font-size:16px;transition:border-color .15s,background .2s,color .2s,opacity .2s}
.opt>span:last-child{min-width:0}
.opt .key{font-family:var(--f-mono);font-size:12px;width:26px;height:26px;border:1px solid var(--line-2);border-radius:8px;display:grid;place-items:center;flex:none;color:var(--mute)}
.opt.mono>span:last-child{font-family:var(--f-mono);font-size:15px}
.opt[aria-pressed="true"]{border-color:var(--paper);box-shadow:inset 0 0 0 1px var(--paper)}
.opt[aria-pressed="true"] .key{background:var(--paper);color:var(--ink);border-color:var(--paper)}
.opt:disabled,.tok:disabled,.bline:disabled,.line-btn:disabled{cursor:default}
.checked .opt:not(.is-right):not(.is-wrong),.checked .tok:not(.is-right):not(.is-wrong),.checked .bline:not(.is-right):not(.is-wrong){opacity:.4}
.opt.is-right,.tok.is-right{background:var(--paper);color:var(--ink);border-color:var(--paper);box-shadow:none}
.opt.is-right .key{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.opt.is-wrong,.tok.is-wrong{border-style:dashed;box-shadow:none;color:var(--mute)}
.opt.is-wrong>span:last-child,.tok.is-wrong{text-decoration:line-through;text-decoration-thickness:1px}
.opt.is-wrong .key{background:transparent;color:var(--mute);border-color:var(--line-2)}
.tokens{display:flex;flex-wrap:wrap;gap:10px}
.tok{font-family:var(--f-mono);font-size:15px;border:1px solid var(--line-2);border-radius:12px;padding:10px 14px;min-height:46px;transition:background .2s,color .2s,opacity .2s}
.tok[aria-pressed="true"]{border-color:var(--paper);box-shadow:inset 0 0 0 1px var(--paper)}
.answer-area{display:grid;gap:8px}
.answer-area.is-wrong .placed{border-style:dashed}
.bank{display:grid;gap:8px;padding-top:14px;border-top:1px solid var(--line)}
.line-btn{display:grid;grid-template-columns:22px minmax(0,1fr);gap:8px;align-items:start;font-family:var(--f-mono);font-size:13.5px;text-align:left;border:1px solid var(--line-2);border-radius:12px;padding:10px 12px;min-height:44px}
.line-btn .lc{white-space:pre-wrap;overflow-wrap:anywhere}
.line-btn .ln-n{color:var(--faint);font-size:11px;padding-top:.15em}
.line-btn.placed{border-color:var(--paper)}
.line-btn.placed .ln-n{color:var(--paper)}
.line-btn.used{border-style:dashed;border-color:var(--line)}
.line-btn.used>*{visibility:hidden}
.slot-line{display:flex;align-items:center;gap:8px;border:1px dashed var(--line);border-radius:12px;min-height:44px;padding:0 12px;font-family:var(--f-mono);font-size:11px;color:var(--faint)}
.typein{width:100%;background:var(--ink);color:var(--paper);border:1px solid var(--line-2);border-radius:16px;padding:16px;font-family:var(--f-mono);font-size:17px}
.typein:focus{border-color:var(--paper);outline:none}
.typein::placeholder{color:var(--faint)}
.typein.is-right{border-color:var(--paper);background:var(--paper);color:var(--ink)}
.typein.is-wrong{border-style:dashed;text-decoration:line-through;color:var(--mute)}

/* feedback */
.fb{padding-block:18px calc(16px + var(--sb));padding-left:var(--gx);padding-right:var(--gxr);display:grid;gap:12px;animation:up .3s cubic-bezier(.2,.8,.2,1) both}
@keyframes up{from{transform:translateY(24px);opacity:.001}to{transform:none;opacity:1}}
.fb.ok{background:var(--paper);color:var(--ink)}
.fb.ok code{border-color:rgba(0,0,0,.25)}
.fb.ok .fb-a{border-color:rgba(0,0,0,.22)}
.fb.no{background:var(--ink);border-top:2px solid var(--paper)}
.fb-h{display:flex;align-items:center;gap:10px;font-family:var(--f-display);font-size:32px;line-height:1}
.fb-h i{width:32px;height:32px;border-radius:50%;display:grid;place-items:center;flex:none}
.fb.ok .fb-h i{background:var(--ink);color:var(--paper)}
.fb.no .fb-h i{border:1.5px solid var(--paper)}
.fb-h svg{width:18px;height:18px}
.fb-a{font-family:var(--f-mono);font-size:14px;white-space:pre-wrap;overflow-wrap:anywhere;border:1px solid var(--line-2);border-radius:12px;padding:10px 12px}
.fb p{font-size:15px}
.flash{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:16px;border-radius:16px;font-weight:600}
.flash.ok{background:var(--paper);color:var(--ink)}
.flash.no{border:1px solid var(--paper)}
.flash code{border-color:var(--line-2)}
.flash svg{width:22px;height:22px;flex:none}

/* resultado */
.result{display:grid;grid-template-columns:minmax(0,1fr);gap:24px;padding-top:26px;animation:in .4s ease both}
.result h1{font-family:var(--f-display);font-size:62px;line-height:.92}
.result h1 em{font-style:italic}
.big-mark{width:92px;height:92px;border-radius:50%;background:var(--paper);color:var(--ink);display:grid;place-items:center;animation:pop .5s cubic-bezier(.3,1.5,.5,1) both}
.big-mark svg{width:42px;height:42px}
.big-mark.hollow{background:var(--ink);color:var(--paper);border:1.5px solid var(--paper)}
@keyframes pop{from{transform:scale(.4);opacity:0}to{transform:none;opacity:1}}
.rain{position:absolute;inset:0;pointer-events:none;z-index:5}

/* idiomas */
.langs{display:grid;gap:12px;margin-top:16px}
.lang{display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:16px;align-items:center;text-align:left;border:1px solid var(--line-2);border-radius:20px;padding:18px 16px}
.lang .glyph{width:52px;height:52px;font-size:14px}
.lname{display:block;font-family:var(--f-display);font-size:30px;line-height:1}
.ltag{display:block;font-size:14px;color:var(--mute);margin-top:4px}
.lang .meta{margin-top:10px}
.lang.sel{border-color:var(--paper);box-shadow:inset 0 0 0 1px var(--paper)}
.soon{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:4px;padding:14px 16px;border:1px dashed var(--line-2);border-radius:20px}
.soon .eyebrow{width:100%;margin-bottom:2px}
.arrow{width:22px;height:22px}
.onb{display:grid;gap:14px;padding-block:28px 22px}
.wordmark{font-family:var(--f-mono);font-size:14px;letter-spacing:.02em;display:flex;align-items:center;gap:2px}
.cursor{display:inline-block;width:9px;height:17px;background:var(--paper);animation:blink 1.1s steps(1) infinite}
@keyframes blink{50%{opacity:0}}
.onb h1{font-family:var(--f-display);font-size:60px;line-height:.92;margin-top:18px}
.onb h1 em{font-style:italic;color:var(--mute)}
.onb>p{color:var(--mute);font-size:17px;max-width:32ch}
.term{border:1px solid var(--line-2);border-radius:18px;overflow:hidden;margin-top:6px}
.term .code-head span:last-child{color:var(--paper)}
.term-body{padding:14px 16px;font-family:var(--f-mono);font-size:14.5px;line-height:1.75;min-height:92px}
.term-body .pr{color:var(--faint)}
.term-body .res{color:var(--mute)}
.caret{display:inline-block;width:8px;height:1.05em;vertical-align:-.15em;background:var(--paper);animation:blink 1s steps(1) infinite;margin-left:1px}

/* folhas */
.scrim{position:fixed;inset:0;z-index:70;background:rgba(0,0,0,.8);display:flex;align-items:flex-end;justify-content:center;animation:fade .2s ease both}
@keyframes fade{from{opacity:0}to{opacity:1}}
.sheet{width:100%;max-width:460px;background:var(--ink);border-top:1px solid var(--line-2);border-radius:24px 24px 0 0;padding-block:12px calc(22px + var(--sb));padding-left:var(--gx);padding-right:var(--gxr);display:grid;gap:16px;animation:up .28s cubic-bezier(.2,.8,.2,1) both;max-height:88%;overflow-y:auto}
@media (min-width:520px){.sheet{border:1px solid var(--line-2);border-bottom:0}}
.grab{width:40px;height:4px;border-radius:9px;background:var(--line-2);justify-self:center}
.sheet h2{font-family:var(--f-display);font-size:38px;line-height:1}
.sheet p{color:var(--mute)}
.hearts-row{display:flex;gap:8px}
.hearts-row svg{width:30px;height:30px}
.toast{position:fixed;left:50%;bottom:calc(104px + var(--sb));transform:translateX(-50%);z-index:90;background:var(--paper);color:var(--ink);padding:10px 16px;border-radius:999px;font-size:14px;font-weight:500;max-width:calc(100% - 32px);text-align:center;animation:up .2s ease both}

/* editor de código */
.editor{border:1px solid var(--line-2);border-radius:16px;overflow:hidden}
.ed-body{display:grid;grid-template-columns:38px minmax(0,1fr);align-items:start}
.gut{margin:0;padding:12px 8px 12px 0;text-align:right;font-family:var(--f-mono);font-size:11px;line-height:calc(var(--code-size,14px) * 1.65);color:var(--faint);user-select:none;border-right:1px solid var(--line);min-height:100%}
.ed{display:block;width:100%;min-height:150px;resize:none;border:0;outline:0;background:var(--ink);color:var(--paper);font-family:var(--f-mono);font-size:var(--code-size,14px);line-height:calc(var(--code-size,14px) * 1.65);padding:12px;white-space:pre;overflow-x:auto;overflow-y:hidden;tab-size:4;caret-color:var(--paper)}
.ed:focus{box-shadow:inset 0 0 0 1px var(--line-2)}
.editor:focus-within{border-color:var(--paper)}
.keys{display:flex;gap:6px;overflow-x:auto;padding:8px;border-top:1px solid var(--line);scrollbar-width:none}
.keys::-webkit-scrollbar{display:none}
.key{flex:none;min-width:38px;height:36px;padding:0 10px;border:1px solid var(--line-2);border-radius:9px;font-family:var(--f-mono);font-size:14px;display:grid;place-items:center}
.key:active{background:var(--paper);color:var(--ink)}
.code-tools{display:flex;gap:18px;margin-top:-6px}
.link{font-size:14px;font-weight:500;text-decoration:underline;text-underline-offset:3px;text-decoration-color:var(--line-2);padding:4px 0;color:var(--paper)}
.code-actions{display:grid;grid-template-columns:1fr 1.4fr;gap:10px}
.con{border:1px solid var(--line-2);border-radius:16px;padding:12px 16px;font-family:var(--f-mono);font-size:13.5px;line-height:1.65;display:grid;gap:6px}
.con pre{margin:0;white-space:pre-wrap;overflow-wrap:anywhere;font:inherit}
.con.is-err{border-style:dashed}
.con-err{text-decoration:none}
.con-tip{font-family:var(--f-body);font-size:14px;color:var(--mute);line-height:1.5}
.con-exp{border:1px dashed var(--line-2);border-radius:16px;padding:12px 16px;font-family:var(--f-mono);font-size:13.5px;line-height:1.65;display:grid;gap:6px;margin-top:10px}
.con-exp pre{margin:0;white-space:pre-wrap;overflow-wrap:anywhere;font:inherit}
#con:empty{display:none}
.stdin{display:grid;gap:6px}
.stdin textarea{background:var(--ink);color:var(--paper);border:1px solid var(--line-2);border-radius:12px;padding:10px 12px;font-family:var(--f-mono);font-size:14px;resize:vertical}
.overlay.pg{z-index:80}
/* projetos */
.proj{margin:30px 0 6px;border:1px solid var(--line-2);border-radius:24px;padding:20px 18px 18px;display:grid;gap:10px;position:relative}
.proj-top{display:flex;justify-content:space-between;align-items:center;gap:10px}
.proj h3{font-family:var(--f-display);font-size:34px;font-weight:400;line-height:1}
.proj p{color:var(--mute);font-size:14px}
.proj-steps{display:flex;gap:6px;margin:4px 0 6px}
.proj-steps i{flex:1;height:3px;border-radius:3px;background:var(--line-2)}
.proj-steps i.on{background:var(--paper)}
.proj.open{border-color:var(--paper);box-shadow:inset 0 0 0 1px var(--paper)}
.proj.locked{border-style:dashed}
.proj.locked h3,.proj.locked p{color:var(--faint)}
.proj.done .proj-steps i{background:var(--paper)}
.plan{margin:0;padding-left:22px;display:grid;gap:10px;font-size:15px;color:var(--mute)}
.plan li::marker{font-family:var(--f-mono);color:var(--paper)}
/* caderno de erros */
.errs{display:grid}
.err-row{display:grid;grid-template-columns:42px minmax(0,1fr);gap:12px;padding-block:12px;border-bottom:1px solid var(--line);align-items:start}
.err-n{font-family:var(--f-display);font-size:28px;line-height:1}
.err-row b{display:block;font-size:14px;font-weight:500;line-height:1.35}
.err-code{display:block;margin-top:6px;width:fit-content;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.err-row small{display:block;font-size:12px;color:var(--faint);margin-top:4px}
.empty{color:var(--mute);font-size:14px;border:1px dashed var(--line-2);border-radius:16px;padding:16px}
/* biblioteca */
.seg{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--line-2);border-radius:999px;padding:4px;margin-top:6px}
.seg button{border-radius:999px;padding:10px 0;font-size:14px;font-weight:500;color:var(--mute);text-align:center}
.seg button[aria-selected="true"]{background:var(--paper);color:var(--ink)}
.lib-intro{color:var(--mute);margin-top:18px;max-width:38ch}
.cola-tools{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:10px;margin-top:6px}
.search{width:100%;background:var(--ink);color:var(--paper);border:1px solid var(--line-2);border-radius:999px;padding:12px 16px;font:inherit;font-size:15px}
.search:focus{outline:none;border-color:var(--paper)}
.search::placeholder{color:var(--faint)}
.btn.sm{min-height:46px;width:auto;padding:0 16px;font-size:14px}
.cola-sec{margin-top:26px}
.cola-sec h3{font-family:var(--f-display);font-weight:400;font-size:28px;padding-bottom:6px;border-bottom:1px solid var(--line)}
.cola-item{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:4px 12px;padding-block:12px;border-bottom:1px solid var(--line);align-items:start}
.cola-item pre{margin:0;font-family:var(--f-mono);font-size:13.5px;line-height:1.6;white-space:pre-wrap;overflow-wrap:anywhere}
.cola-item p{grid-column:1;font-size:13px;color:var(--mute)}
.cola-item .copy{grid-column:2;grid-row:1}
/* conta e liga */
.acct{display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:12px;align-items:center;border:1px solid var(--line-2);border-radius:18px;padding:12px 14px}
.acct img,.avatar-ph{width:40px;height:40px;border-radius:50%;object-fit:cover;flex:none}
.avatar-ph{border:1px dashed var(--line-2);display:block}
.acct b{display:block;font-weight:500;font-size:15px}
.acct small{display:block;font-size:12.5px;color:var(--mute);line-height:1.4;margin-top:2px}
.dot{width:8px;height:8px;border-radius:50%;border:1px solid var(--paper)}
.dot.on{background:var(--paper)}
.liga{list-style:none;margin:0;padding:0;display:grid}
.liga li{display:grid;grid-template-columns:28px 32px minmax(0,1fr) auto;gap:12px;align-items:center;padding:10px 12px;border-bottom:1px solid var(--line)}
.liga li.me{background:var(--paper);color:var(--ink);border-radius:14px;border-color:transparent}
.liga .pos{font-family:var(--f-display);font-size:24px;line-height:1;text-align:center}
.liga img{width:32px;height:32px;border-radius:50%;object-fit:cover;border:1px solid var(--line-2)}
.liga li.me img{border-color:var(--ink)}
.liga .nm{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:15px}
.liga b{font-family:var(--f-mono);font-size:13px;font-weight:600;white-space:nowrap}

/* HTML e CSS */
.pv-frame{display:block;width:100%;height:48px;border:0;background:#fff;color-scheme:light}
.preview{border:1px solid var(--line-2);border-radius:12px;overflow:hidden;background:var(--paper)}
.pv-bar{display:flex;align-items:center;gap:5px;padding:7px 10px;background:var(--ink);border-bottom:1px solid var(--line-2)}
.pv-bar i{width:7px;height:7px;border-radius:50%;border:1px solid var(--line-2)}
.pv-bar span{margin-left:auto;font-family:var(--f-mono);font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--faint)}
.pv-host{min-height:60px;max-height:420px;overflow:auto}
.con-msg{font-family:var(--f-body);font-size:15px;color:var(--paper);line-height:1.45}
/* tutor */
.tutor-btn{display:inline-flex;align-items:center;gap:6px;margin-top:10px;padding:9px 14px;border:1px solid var(--line-2);border-radius:999px;font-size:14px;font-weight:500;width:fit-content}
.fb .tutor-btn{margin-top:0}
.fb.ok .tutor-btn{border-color:rgba(0,0,0,.25)}
.ai{border:1px solid var(--paper);border-radius:16px;padding:14px 16px;display:grid;gap:6px;margin-top:10px;font-size:15px;line-height:1.55}
.ai.busy .ai-txt{color:var(--mute)}
.ai code{white-space:normal}
.ask{width:100%;background:var(--ink);color:var(--paper);border:1px solid var(--line-2);border-radius:16px;padding:12px 14px;font:inherit;font-size:15px;resize:vertical}
.ask:focus{outline:none;border-color:var(--paper)}
/* nivelamento, ajustes, certificado */
.choice{display:grid;gap:10px}
.link.center{justify-self:center;font-size:13.5px;color:var(--mute)}
.goal{width:100%;text-align:left}
.banner{display:grid;grid-template-columns:auto minmax(0,1fr);gap:12px;align-items:center;background:var(--paper);color:var(--ink);border-radius:16px;padding:12px 14px}
.banner svg{width:22px;height:22px;display:block}
.banner b{display:block;font-weight:600;font-size:15px}
.banner small{display:block;font-size:13px;opacity:.7}
.set{display:grid;gap:8px}
.seg.four{grid-template-columns:repeat(4,1fr)}
.seg.three{grid-template-columns:repeat(3,1fr)}
.seg button b{display:block;font-family:var(--f-display);font-weight:400;font-size:22px;line-height:1}
.seg button small{display:block;font-size:11px;margin-top:2px;opacity:.7}
.seg button[aria-pressed="true"]{background:var(--paper);color:var(--ink)}
.row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:10px}
input[type="time"].search{border-radius:14px}
.switch{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:12px;align-items:center;cursor:pointer;position:relative}
.switch b{display:block;font-weight:500}
.switch small{display:block;font-size:13px;color:var(--mute)}
.switch input{position:absolute;opacity:0;width:1px;height:1px}
.switch i{width:46px;height:28px;border-radius:999px;border:1px solid var(--line-2);position:relative;transition:background .2s}
.switch i::after{content:"";position:absolute;top:3px;left:3px;width:20px;height:20px;border-radius:50%;background:var(--faint);transition:transform .2s,background .2s}
.switch input:checked + i{background:var(--paper);border-color:var(--paper)}
.switch input:checked + i::after{transform:translateX(18px);background:var(--ink)}
.switch input:focus-visible + i{outline:2px solid var(--paper);outline-offset:3px}
.field{display:grid;gap:6px}
.cert-wrap{border:1px solid var(--line-2);border-radius:12px;overflow:hidden;aspect-ratio:1600/1130;max-width:100%;background:var(--ink)}
.cert-wrap img{display:block;width:100%;height:100%}

.update{position:fixed;left:50%;transform:translateX(-50%);bottom:calc(100px + var(--sb));z-index:95;display:flex;gap:12px;align-items:center;background:var(--paper);color:var(--ink);padding:8px 8px 8px 16px;border-radius:999px;font-size:14px;font-weight:500;max-width:calc(100% - 32px);box-shadow:0 0 0 1px var(--ink)}
.update button{background:var(--ink);color:var(--paper);border-radius:999px;padding:8px 14px;font-weight:600}
.acct .link{font-size:13px;margin-top:4px}

@media (max-width:370px){
  .next h1{font-size:36px}.next .outline-num{font-size:70px}
  .onb h1{font-size:52px}.page-head h1{font-size:44px}
  .code pre{font-size:13px}.stat{padding:6px 5px}
}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important}}
/* ================= tela de entrada: login e cadastro ================= */
.auth{position:fixed;inset:0;z-index:85;background:var(--ink);overflow-y:auto;overscroll-behavior:contain;-webkit-overflow-scrolling:touch;animation:authFade .35s ease both}
.auth.closing{animation:authOut .28s ease both}
@keyframes authFade{from{opacity:0}to{opacity:1}}
@keyframes authOut{to{opacity:0;transform:scale(1.02)}}
.auth-in{min-height:100%}
.auth-main{min-height:100%;max-width:440px;margin:0 auto;display:flex;flex-direction:column;padding:calc(var(--st) + 18px) var(--gxr) calc(var(--sb) + 22px) var(--gx)}
.auth-bar{height:44px;display:flex;align-items:center;justify-content:space-between}
.auth-back{width:44px;height:44px;margin-left:-10px;border-radius:50%;display:grid;place-items:center;color:var(--paper)}
.auth-back svg{width:22px;height:22px}
.auth-back[hidden]{display:grid!important;visibility:hidden}
.auth-skip{font-size:14px;font-weight:500;color:var(--mute);padding:10px 0 10px 12px}
.auth-skip:active{color:var(--paper)}
.auth-brand{display:flex;flex-direction:column;align-items:center;text-align:center;padding:26px 0 30px}
.auth-mark{font-family:var(--f-mono);font-weight:500;font-size:44px;line-height:1;letter-spacing:-.02em;display:flex;align-items:center;gap:0}
.auth-mark span{display:inline-block;animation:authLetter .55s cubic-bezier(.2,.7,.2,1) both}
.auth-mark .cur{width:22px;height:40px;background:var(--paper);margin-left:5px;animation:authBlink 1.1s steps(1) infinite .9s}
@keyframes authLetter{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
@keyframes authBlink{50%{opacity:0}}
.auth-term{margin-top:16px;font-family:var(--f-mono);font-size:13px;color:var(--faint);white-space:nowrap;overflow:hidden;max-width:100%;text-overflow:ellipsis;min-height:18px}
.auth-term b{font-weight:400;color:var(--paper)}
.auth-head{text-align:center;margin-bottom:24px}
.auth-head h1{font-family:var(--f-display);font-weight:400;font-size:42px;line-height:1;letter-spacing:-.01em;margin:0;text-wrap:balance}
.auth-head h1 em{font-style:italic;color:var(--mute)}
.auth-head p{margin:10px auto 0;color:var(--mute);font-size:15px;line-height:1.45;max-width:30ch}
.auth .seg{position:relative;display:grid;grid-template-columns:1fr 1fr;height:50px;padding:4px;border-radius:999px;border:1px solid var(--line-2);margin-bottom:22px}
.auth .seg::before{content:"";position:absolute;top:4px;bottom:4px;left:4px;width:calc(50% - 4px);border-radius:999px;background:var(--paper);transition:transform .35s cubic-bezier(.3,.8,.2,1)}
.auth .seg.r::before{transform:translateX(100%)}
.auth .seg button{position:relative;z-index:1;font-size:15px;font-weight:600;color:var(--mute);border-radius:999px;transition:color .25s}
.auth .seg button[aria-selected="true"]{color:var(--ink)}
.af{display:flex;flex-direction:column;gap:14px}
.fld{display:flex;flex-direction:column;gap:8px}
.fld-wrap{display:grid;grid-template-rows:1fr;transition:grid-template-rows .35s cubic-bezier(.3,.8,.2,1),opacity .25s}
.fld-wrap>div{min-height:0;overflow:hidden}
.fld-wrap.off{grid-template-rows:0fr;opacity:0;margin-bottom:-14px}
.fld .fld-wrap.off{margin-bottom:-8px}
.fld label{font-family:var(--f-mono);font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--mute);display:flex;justify-content:space-between;align-items:baseline}
.fld label a,.fld label button{font-family:var(--f-body);letter-spacing:0;text-transform:none;font-size:13px;font-weight:500;color:var(--paper);text-decoration:underline;text-underline-offset:3px;text-decoration-color:var(--line-2)}
.inp{position:relative;display:flex;align-items:center}
.inp input{width:100%;height:56px;border-radius:16px;border:1.5px solid var(--line-2);background:var(--ink);color:var(--paper);font:500 16px/1 var(--f-body);padding:0 16px 0 48px;outline:none;transition:border-color .2s,box-shadow .2s;-webkit-appearance:none;appearance:none}
.inp input::placeholder{color:var(--faint);font-weight:400}
.inp input:focus{border-color:var(--paper);box-shadow:0 0 0 4px rgba(255,255,255,.08)}
.inp input:-webkit-autofill{-webkit-text-fill-color:var(--paper);-webkit-box-shadow:0 0 0 60px var(--ink) inset;caret-color:var(--paper)}
.inp .ico{position:absolute;left:16px;width:20px;height:20px;color:var(--faint);pointer-events:none;transition:color .2s}
.inp input:focus~.ico,.inp input:not(:placeholder-shown)~.ico{color:var(--paper)}
.inp .eye{position:absolute;right:6px;width:44px;height:44px;border-radius:12px;display:grid;place-items:center;color:var(--mute)}
.inp .eye svg{width:20px;height:20px}
.inp.pw input{padding-right:54px}
.fld.bad .inp input{border-color:var(--paper);border-style:dashed}
.ferr{display:flex;gap:8px;align-items:flex-start;font-size:13px;line-height:1.35;color:var(--paper);min-height:0}
.ferr:empty{display:none}
.ferr::before{content:"!";flex:none;width:16px;height:16px;border-radius:50%;background:var(--paper);color:var(--ink);font:700 11px/16px var(--f-mono);text-align:center;margin-top:1px}
.rules{display:flex;gap:16px;flex-wrap:wrap;font-size:12.5px;color:var(--faint)}
.rules span{display:inline-flex;align-items:center;gap:7px;transition:color .2s}
.rules span::before{content:"";width:8px;height:8px;border-radius:50%;box-shadow:inset 0 0 0 1.5px currentColor;transition:background .2s}
.rules span.ok{color:var(--paper)}
.rules span.ok::before{background:var(--paper);box-shadow:none}
.amsg{border:1px solid var(--line-2);border-radius:16px;padding:14px 16px;font-size:14px;line-height:1.45;display:flex;gap:12px;align-items:flex-start;animation:up .25s ease both}
.amsg::before{content:"!";flex:none;width:20px;height:20px;border-radius:50%;background:var(--paper);color:var(--ink);font:700 12px/20px var(--f-mono);text-align:center}
.amsg.ok::before{content:"✓"}
.amsg .link{display:block;margin-top:6px;font-size:13px}
.abtn{position:relative;margin-top:6px}
.abtn .spin{display:none;width:18px;height:18px;border-radius:50%;border:2px solid currentColor;border-right-color:transparent;animation:spin .7s linear infinite}
.abtn.busy .spin{display:block}
@keyframes spin{to{transform:rotate(360deg)}}
.btn:disabled{opacity:.55}
.aor{display:flex;align-items:center;gap:14px;margin:22px 0;font-family:var(--f-mono);font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--faint)}
.aor::before,.aor::after{content:"";flex:1;height:1px;background:var(--line)}
/* botão do Google: padrão escuro das diretrizes do Google */
.gbtn{display:flex;align-items:center;justify-content:center;gap:12px;width:100%;height:54px;border-radius:999px;background:#131314;border:1px solid #8e918f;color:#e3e3e3;font:600 15.5px/1 var(--f-body);letter-spacing:.01em;transition:background .2s,border-color .2s}
.gbtn:active{background:#1f1f20}
.gbtn svg{width:20px;height:20px;flex:none}
.gbtn .spin{width:18px;height:18px;border-radius:50%;border:2px solid #e3e3e3;border-right-color:transparent;animation:spin .7s linear infinite}
.afoot{margin-top:auto;padding-top:28px;text-align:center;display:flex;flex-direction:column;gap:14px;align-items:center}
.afoot .local{font-size:13px;color:var(--faint);line-height:1.45;max-width:32ch}
.afoot .legal{font-size:12px;color:var(--mute);line-height:1.5}
.afoot .legal a{color:var(--mute);text-decoration:underline;text-underline-offset:2px}
.apanel{display:flex;flex-direction:column;align-items:center;text-align:center;gap:14px;animation:up .3s ease both}
.apanel .big{width:76px;height:76px;border-radius:50%;border:1.5px solid var(--line-2);display:grid;place-items:center;margin-bottom:6px}
.apanel .big svg{width:32px;height:32px}
.apanel .mail{font-family:var(--f-mono);font-size:14px;padding:8px 14px;border-radius:999px;border:1px solid var(--line-2);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.apanel ol{text-align:left;margin:6px 0 4px;padding-left:20px;color:var(--mute);font-size:14px;line-height:1.6;align-self:stretch}
.apanel .btn{margin-top:6px}
.apanel .row{display:flex;flex-direction:column;gap:10px;align-self:stretch}
@media (prefers-reduced-motion: reduce){.auth,.auth *{animation:none!important;transition:none!important}}
/* ================= notebook e PC (telas a partir de 1024px) ================= */
.side-brand,.side-foot,.kbd-hint,.auth-side{display:none}
@media (hover:hover) and (pointer:fine){
  .btn-white:hover{transform:translateY(-1px)}
  .btn-ghost:hover{border-color:var(--paper)}
  .lang:hover,.mode:hover,.proj:hover{border-color:var(--paper)}
  .stop:not(.locked) .node:hover{transform:scale(1.06)}
  .opt:hover:not(:disabled){border-color:var(--paper)}
  .chip:hover,.tag-btn:hover{color:var(--paper);border-color:var(--paper)}
  .gbtn:hover{background:#1f1f20;border-color:#b0b3b1}
  .auth-skip:hover,.link:hover{color:var(--paper)}
  .tab:hover{color:var(--paper)}
}
@media (min-width:1024px){
  :root{--side:264px;--gx:40px;--gxr:40px}
  body{font-size:16.5px}
  #app{max-width:none;margin:0;display:grid;grid-template-columns:var(--side) minmax(0,1fr);grid-template-rows:auto 1fr;border:0!important}
  /* menu lateral no lugar da barra de baixo */
  .tabbar{grid-column:1;grid-row:1 / span 2;position:sticky;top:var(--st);left:auto;right:auto;bottom:auto;height:calc(100vh - var(--st));height:calc(100dvh - var(--st));border-top:0;border-right:1px solid var(--line);padding:28px 18px 22px;display:flex;flex-direction:column;gap:30px}
  .side-brand{display:flex;align-items:center;font-family:var(--f-mono);font-weight:500;font-size:24px;letter-spacing:-.02em;padding:0 12px;color:var(--paper);text-decoration:none}
  .side-brand .cursor{width:12px;height:24px;margin-left:3px}
  .tabbar-in{max-width:none;margin:0;display:flex;flex-direction:column;gap:4px}
  .tab{flex-direction:row;justify-content:flex-start;gap:14px;height:48px;padding:0 14px;border-radius:14px;font-size:15px;font-weight:500;letter-spacing:0;text-transform:none;font-family:var(--f-body)}
  .tab span{font-size:15px;letter-spacing:0;text-transform:none;font-family:var(--f-body)}
  .tab svg{width:21px;height:21px}
  .tab[aria-selected="true"]{background:var(--paper);color:var(--ink)}
  .tab[aria-selected="true"]::before,.tab[aria-selected="true"]::after{display:none}
  .side-foot{display:block;margin-top:auto;border-top:1px solid var(--line);padding:18px 6px 0}
  .side-acct{display:flex;align-items:center;gap:12px;width:100%;text-align:left;padding:8px;border-radius:14px}
  .side-acct:hover{background:rgba(255,255,255,.06)}
  .side-acct img{width:36px;height:36px;border-radius:50%;flex:none}
  .side-acct b{display:block;font-size:14px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .side-acct small{display:block;font-size:12px;color:var(--mute)}
  .side-acct span{min-width:0}
  .side-note{font-size:12.5px;color:var(--faint);line-height:1.45;padding:0 8px}
  .side-login{width:100%}
  .side-kbd{margin-top:14px;padding:0 8px;font-size:11.5px;color:var(--faint);line-height:1.6}
  .side-kbd kbd{font-family:var(--f-mono);font-size:10.5px;border:1px solid var(--line-2);border-radius:5px;padding:1px 5px;color:var(--mute)}
  /* topo */
  .top{grid-column:2;grid-row:1;padding-block:16px;padding-left:40px;padding-right:40px;background:rgba(0,0,0,.86);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}
  .views{grid-column:2;grid-row:2;padding-bottom:80px;min-width:0}
  #view>.wrap{max-width:1040px;margin:0 auto;padding-left:40px;padding-right:40px}
  .page-head{padding-block:44px 8px}
  .page-head h1{font-size:72px}
  .page-head p{max-width:52ch;font-size:17px}
  /* trilha: caminho à esquerda, painel fixo à direita */
  #view>.wrap.has-trail{max-width:1180px;display:grid;grid-template-columns:minmax(0,1fr) 380px;gap:0 64px;align-items:start}
  .has-trail>.hero{grid-column:2;grid-row:1;position:sticky;top:calc(var(--st) + 96px);padding-top:36px}
  .has-trail>.trail{grid-column:1;grid-row:1;min-width:0;padding-top:18px;max-width:600px;width:100%;justify-self:center}
  .has-trail .hero .next h1{font-size:44px}
  /* desafios */
  .modes{grid-template-columns:1fr 1fr}
  .daily{width:100%}
  .daily{padding:30px 30px;grid-template-columns:minmax(0,1fr) auto;align-items:end}
  .daily .daily-top{grid-column:1 / -1}
  .daily h2{font-size:56px}
  .daily-cta{border-top:0;padding-top:0;gap:14px}
  .daily .bigdeco{font-size:180px;bottom:auto;top:10px;right:24px}
  /* biblioteca */
  .cola-sec{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 36px;align-items:start}
  .cola-sec>:first-child{grid-column:1 / -1}
  #libbody{max-width:none}
  .book{grid-template-columns:80px minmax(0,1fr);gap:22px}
  .cover{width:80px;height:114px}
  /* perfil */
  .badges{grid-template-columns:repeat(6,minmax(0,1fr))}
  .heat-wrap{max-width:640px}
  .auth-main{justify-content:flex-start}
  .lvl h1{font-size:56px}
  .actions{grid-template-columns:repeat(3,minmax(0,1fr))}
  /* boas-vindas em duas colunas */
  #app>.wrap.onb-wrap{grid-column:1 / -1;grid-row:1 / -1;max-width:1180px;width:100%;margin:0 auto;padding:64px 48px;display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:0 88px;align-items:start}
  .onb-wrap>.onb{grid-column:1;grid-row:1 / span 3;position:sticky;top:64px;padding-block:0}
  .onb-wrap>:not(.onb){grid-column:2}
  .onb-wrap .wordmark{font-size:20px}
  .onb-wrap .cursor{width:11px;height:21px}
  .onb h1{font-size:96px}
  .onb>p{font-size:19px;max-width:36ch}
  .onb-wrap .langs{margin-top:14px}
  /* lição, prática e playground: cartão central mais largo */
  .overlay{background:var(--ink)}
  .overlay-in{max-width:820px}
  .l-top{padding-block:20px;padding-left:40px;padding-right:40px}
  .l-body{padding-block:20px 40px;padding-left:40px;padding-right:40px}
  .l-foot{padding-block:18px;padding-left:40px;padding-right:40px}
  .l-foot .btn{max-width:none}
  .q-prompt{font-size:22px}
  .prose{font-size:17.5px}
  .opts{gap:12px}
  .kbd-hint{display:block;font-family:var(--f-mono);font-size:11px;letter-spacing:.08em;color:var(--faint);white-space:nowrap}
  .kbd-hint kbd{font-family:var(--f-mono);border:1px solid var(--line-2);border-radius:5px;padding:1px 5px;color:var(--mute);margin:0 2px}
  .overlay.pg .overlay-in{max-width:1040px}
  .keys{display:none}
  /* folhas viram janelas centrais */
  .scrim{align-items:center;padding:24px}
  .sheet{max-width:520px;border:1px solid var(--line-2)!important;border-radius:24px;padding:28px 32px;animation:pop .25s cubic-bezier(.2,.8,.2,1) both;max-height:calc(100vh - 48px);overflow-y:auto}
  .sheet .grab{display:none}
  @keyframes pop{from{opacity:0;transform:translateY(12px) scale(.98)}to{opacity:1;transform:none}}
  .toast{bottom:32px;left:calc(50% + var(--side) / 2)}
  .overlay~.toast,body:has(.overlay) .toast{left:50%}
  /* tela de entrada em duas metades */
  .auth-in{max-width:none;display:grid;grid-template-columns:minmax(0,1.1fr) minmax(460px,.9fr);padding:0;min-height:100%}
  .auth-side{display:flex;flex-direction:column;justify-content:space-between;position:sticky;top:0;height:100vh;height:100dvh;padding:44px 56px;border-right:1px solid var(--line);overflow:hidden}
  .auth-side::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.12) 1px,transparent 1.2px);background-size:26px 26px;-webkit-mask-image:radial-gradient(ellipse 70% 60% at 50% 45%,#000 10%,transparent 75%);mask-image:radial-gradient(ellipse 70% 60% at 50% 45%,#000 10%,transparent 75%);pointer-events:none}
  .auth-side>*{position:relative}
  .as-top{display:flex;justify-content:space-between;align-items:center;font-family:var(--f-mono);font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--faint)}
  .as-mid{display:flex;flex-direction:column;align-items:center;text-align:center;gap:30px}
  .as-mark{font-family:var(--f-mono);font-weight:500;font-size:96px;line-height:1;letter-spacing:-.03em;display:flex;align-items:center}
  .as-mark span{display:inline-block;animation:authLetter .6s cubic-bezier(.2,.7,.2,1) both}
  .as-mark .cur{width:48px;height:88px;background:var(--paper);margin-left:10px;animation:authBlink 1.1s steps(1) infinite 1s}
  .as-mid h2{font-family:var(--f-display);font-weight:400;font-size:60px;line-height:.98;letter-spacing:-.01em;margin:0}
  .as-mid h2 em{font-style:italic;color:var(--mute)}
  .as-term{width:min(100%,460px);text-align:left;border:1px solid var(--line-2);border-radius:18px;overflow:hidden;background:var(--ink)}
  .as-term .code-head span:last-child{color:var(--paper)}
  .as-term .term-body{min-height:104px}
  .as-foot{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-top:1px solid var(--line);padding-top:22px}
  .as-foot div{display:grid;gap:2px}
  .as-foot b{font-family:var(--f-display);font-weight:400;font-size:44px;line-height:1;font-variant-numeric:tabular-nums}
  .as-foot span{font-family:var(--f-mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--mute)}
  .auth-main{max-width:460px;width:100%;margin:0 auto;padding:36px 44px 32px;justify-self:center}
  .auth-main .auth-brand{display:none}
  .auth-main .auth-head{margin:36px 0 28px}
  .auth-main .auth-head h1{font-size:52px}
}
@media (min-width:1024px) and (max-width:1199px){
  :root{--side:224px}
  #view>.wrap,#view>.wrap.has-trail{padding-left:28px;padding-right:28px}
  #view>.wrap.has-trail{grid-template-columns:minmax(0,1fr) 320px;gap:0 36px}
  .has-trail .hero .next h1{font-size:38px}
  .top{padding-left:28px;padding-right:28px}
  .as-top span:last-child{display:none}
  .auth-side{padding:36px 40px}
  .as-mark{font-size:76px}.as-mark .cur{width:38px;height:70px}
  .as-mid h2{font-size:48px}
}
@media (min-width:1024px) and (max-height:760px){
  .as-mark{font-size:72px}.as-mark .cur{width:36px;height:66px}
  .as-mid{gap:20px}.as-mid h2{font-size:46px}
}
@media (min-width:1440px){
  :root{--side:288px}
  #view>.wrap.has-trail{grid-template-columns:minmax(0,1fr) 420px;gap:0 88px}
}